Culligan SCWH-5 Whole House Advanced Water Filter, 15,000 Gallons, 1-Pack, White The SCWH-5 carbon wrapped standard duty filtration cartridge works in HF-150A, HF-160, HF-360A, and HF-365 whole house filtration systems Perfect for residential homes, helps protect appliances and pluming from sediment and scale Features a flow rate of 4 GPM and filter life of 3 months/15,000 gallons (depending on usage and water conditions) Reduces: sediment, rust, scale, dirt and sand The HF-150A is tested and certified by WQA against NSF/ANSI Standard 42 for materials safety and structural integrity only Micron rating of 5 (the smaller the micron rating, the smaller size patricle the cartridge will filter) Compatible with Culligan model HF-150A, HF-160, HF-360A, and HF-365